123352320 has 288 divisors, whose sum is σ = 486243072. Its totient is φ = 25952256.

The previous prime is 123352277. The next prime is 123352331. The reversal of 123352320 is 23253321.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 349264 + ... + 349616.

It is an arithmetic number, because the mean of its divisors is an integer number (1688344).

Almost surely, 2^123352320 is an apocalyptic number.

123352320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123352320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243121536).

123352320 is an abundant number, since it is smaller than the sum of its proper divisors (362890752).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123352320 is a wasteful number, since it uses less digits than its factorization.

123352320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 397 (or 383 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 21.

The square root of 123352320 is about 11106.4089605957. The cubic root of 123352320 is about 497.7933692206.

The spelling of 123352320 in words is "one hundred twenty-three million, three hundred fifty-two thousand, three hundred twenty".